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Patent
D658681
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Priority
Dec 27 2010
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Filed
Jun 27 2011
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Issued
May 01 2012
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Expiry
May 01 2026
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Assg.orig
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Entity
unknown
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8
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3
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n/a
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The ornamental design for a flat spring, as shown and described.
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FIG. 1 is a front perspective view of a flat spring;
FIG. 2 is a front plan view thereof, the rear plan view being a mirror image; and,
FIG. 3 is a left side elevational view thereof, the right side elevational view being a minor image.
Couto, Paulo Rogerio Carrara, Takemori, Celso Kenzo, Roman, Alisson Luiz
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| Date |
Maintenance Fee Events |
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| Date |
Maintenance Schedule |
n/a